:root {
  --bg-deep: #041225;
  --bg-mid: #0f2c53;
  --bg-soft: #e6f2ff;

  --ink: #0f172a;
  --ink-soft: #42556f;
  --ink-muted: #617694;

  --card: rgba(255, 255, 255, 0.94);
  --panel: rgba(255, 255, 255, 0.98);
  --line: rgba(15, 23, 42, 0.12);
  --line-strong: rgba(15, 23, 42, 0.2);

  --primary: #0f63ba;
  --primary-press: #0c4f95;
  --primary-soft: rgba(15, 99, 186, 0.1);

  --success: #0b7a3f;
  --success-bg: rgba(22, 163, 74, 0.16);
  --warn: #8a5b08;
  --warn-bg: rgba(245, 158, 11, 0.2);
  --danger: #9f1239;
  --danger-bg: rgba(244, 63, 94, 0.16);

  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 30px;

  --shadow-sm: 0 8px 20px rgba(2, 12, 32, 0.1);
  --shadow-md: 0 14px 34px rgba(2, 12, 32, 0.16);
  --shadow-lg: 0 24px 60px rgba(2, 12, 32, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Avenir Next", "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  background: #ffffff;
}

a {
  color: var(--primary);
}

:focus-visible {
  outline: 3px solid rgba(15, 99, 186, 0.35);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}